<template>
  <!-- 输入框 -->
  <header class="header">
    <h1>小黑记事本</h1>
    <input placeholder="请输入任务" class="new-todo" v-model="info" @keyup.enter="add"/>
    <button class="add" @click="add">添加任务</button>
  </header>
</template>

<script>
export default {
  data() {
    return {
      info: "",
    };
  },
  methods: {
    // 子组件向父组件传值
    add() {
        this.$emit('add',this.info)
        this.info=''
    },
  },
};
</script>

<style>
</style>